Hi,
we did that personal storyline together as every storyline quest before. My bf always owns the instance and I just accept at the end to get my reward and story progress, too.
In that storyline quest it did not work.. he got his progress and reward and I got nothing.
Well, after being sent back to the place where to start this quest, it said I have to do this quest (so it didn’t update for me). That was good, because after we did it again (I owned the instance) everything went well. I was rewarded and my storyline progressed to the next one.
Maybe you could fix this? It doesn’t make sense that you can do the storyline quests before and get rewarded by accepting the progress and in that case you need to own the instance by yourself to achieve that.
As this quest wasn’t such long it wasn’t really frustrating, because doing it again was a very fast solution. But you shouldn’t have to do storylines again..
Cheers!